Very Computer

After installing Red Hat Linux 7.2, I wanted to configure the sound
card with sndconfig.

The tool detected the card as AZT1008 PnP (Sound Device : Audio). On
the next screen, I was given very few options (address, IRQ, DMA1,
DMA2 with not much choices).

When sndconfig tried to play the test sound, I got the following
errors:

The following error occurred running the modprobe program:   ?
        ?                                                            
?
        ? /lib/modules/2.4.7-10/kernel/drivers/sound/ad1848.o:        
?
        ? init_module: No such device                                
?
        ? /lib/modules/2.4.7-10/kernel/drivers/sound/ad1848.o: insmod
?
        ? /lib/modules/2.4.7-10/kernel/drivers/sound/ad1848.o failed  
?
        ? /lib/modules/2.4.7-10/kernel/drivers/sound/ad1848.o: insmod
?
        ? sound-slot-0 failed

sndconfing went back to the start (and it was impossible to get out of
it, cancel just wouldn't work).

The card is AZTECH MM PRO 16V - A (HP 5064-2620) BP. It has two chips
marked AZTECH AZT2320 and TEA2025B.

Also, when I enter KDE, I get errors:
device /dev/dsp can't be opened, no such device...

Any solution to this, or is this card just not supported by Linux?